At first I experience a slight problem reading. I can't focus on the center of the word, and I can only see the perimeter of the word. Then the zig zags start in both eyes. This was very frightening and still is to a certain extent, until I read a lot about ocular migraines. I read things like: they can last some time, and the heart rate can sometimes spike and go up to 170 or 180 systolic for about 15 minutes. This seems to be very true with my condition. Sometimes I get a migraine headache afterwards, and sometimes there is no headache. My neurologist suggested that I take my blood pressure while this is happening. I have done that with most of my attacks since then and it's true my blood pressure has spiked.